OTC's CEA-02 Cap and Plug Kit contains various sizes of caps and plugs necessary to seal the intake ducting of an automotive engine being tested with OTC's No. 6521 or 6522 Leak Tamer. This 16 piece set includes multiple sizes to fit most applications. Durable construction will withstand repeated use. Molded in yellow for high visibility, making them easy to find and less likely to be left in place after testing. Value is at the core of the OTC tool and equipment portfolio. For a simple repair or the most complex drivability concern, these award-winning tools universally solve problems faster, and at better value, than any other product line available. Whether it's a specialty tool or unique piece of service equipment, OTC provides top solutions to modern automotive service challenges while increasing technicians' productivity and shop profits.